First of all I couldn't get into any of my Open Office documents. I tried opening the task manager and deleting all the open office files I saw open there (that usually does the trick), but this time it didn't. Then I finally opened a document, which looked like this, rather than having the normal text I was expecting. This must be a corrupted file.

In order for the above to open I got a dialogue box saying "Welcome to Open Office 4.1.7" Then asking me for my Christian name, my surname, and my initials.
I then tried opening other Open Office documents, and this time they were fine.
Twice now Windows has shut down my computer, and said I was to report "Cache Manager" to person responsible for my computer. Not sure if that is at all relevant.
I think I should now just delete the corrupted file, carry on as though nothing has happened, and hope for the best. I thought I would post about the issue here though, just in case I'm doing something wrong. I'm afraid I am dreadfully ignorant with computers.